Basic Math Examples

$120$ , $0 - 80$ , $0$

Step 1

Subtract $80$ from $0$ .

$120, - 80, 0$

Step 2

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{120 - 80 + 0}{3}$

Step 3

Simplify the numerator.

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Step 3.1

Add $120 - 80$ and $0$ .

$\frac{120 - 80}{3}$

Step 3.2

Subtract $80$ from $120$ .

$\frac{40}{3}$

Step 4

Divide.

$13.\overline{3}$

Step 5

The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

$13.3$